package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.filter.exception.CustomException;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {
    @Autowired
    DishService dishService;
    @Autowired
    SetmealService setmealService;


    @Override
    public void remove(Long id) {
        LambdaQueryWrapper<Dish> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(Dish::getCategoryId,id);
        int count = dishService.count(wrapper);
        if(count>0){
            throw new CustomException("该分类关联菜品，不能删除");
        }

        LambdaQueryWrapper<Setmeal> setmealwrapper = new LambdaQueryWrapper<>();
        setmealwrapper.eq(Setmeal::getCategoryId,id);
        int count1 = setmealService.count(setmealwrapper);
        if(count1>0){
            throw new CustomException("该分类下关联套餐，不能删除");
        }
        super.removeById(id);
    }
}
